Fantasy author Neil Gaiman’s 1996 novel Neverwhere is not just a marvelous self-contained novel, but a terrifically useful text for introducing students to fantasy as a genre and issues of adaptation. Jeffrey Andrew Weinstock’s briskly written A Critical Companion to Neil Gaiman’s Neverwhere offers an introduction to the work; situates it in relation to the fantasy genre, with attention in particular to the Hero’s Journey, urban fantasy, word play, social critique, and contemporary fantasy trends; and explores it as a case study in transmedial adaptation. The study ends with an interview with Neil Gaiman that addresses the novel and a bibliography of scholarly works on Gaiman.